TM 10-3930-675-20-1
0007 00-22
ENGINE FUEL INJECTOR CIRCUITS TROUBLESHOOTING - CONTINUED
0007 00
WARNING
Injector solenoids receive high voltage when engine is operating. To avoid personal injury or death from
electrical shock, do not wear jewelry or damp clothing, and do not touch injector solenoids or solenoid wires
when engine is operating.
Table 6. Error Code 1321 - Injector Circuit Failure Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 1321 - Injector Circuit Failure -
Continued
6. Measure
resistance
from
injector solenoid pin A to pin
B. Resistance should be 0.5-
1.5 ohms.
a. If resistance is as specified,
replace engine ECU (WP
0078 00).
b. If resistance is not as
specified,
notify
DS
Maintenance
to
replace
injector.
7. Place ignition switch in OFF
position and, with rocker arm
cover removed, disconnect
internal actuator harness from
injector solenoid and remove
injector solenoid wires from
solenoid.
8. Measure resistance from post
to
post
on
solenoid.
Resistance should be 0.5-1.5
ohms.
If resistance is not as specified,
notify DS Maintenance to
replace injector.
Table 7. Error Code 1322 - Injector Circuit Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 1322 - Injector Circuit Failure
1. Place ignition switch to OFF
position
and
disconnect
actuator harness from engine
ECU.
a. Inspect actuator harness
and ECU connector for
dirty,
corroded,
bent,
broken, pushed back, and
extended pins.
Clean and repair connector(s) as
required (WP 0111 00).
